DOI: 10.1016/j.marpolbul.2017.11.009
Scopus记录号: 2-s2.0-85033578552
论文题名: Anthropogenic and natural variability in the composition of sedimentary organic matter of the urbanised coastal zone of Montevideo (Río de la Plata)
作者: Bueno C. ; Brugnoli E. ; Bergamino L. ; Muniz P. ; García-Rodríguez F. ; Figueira R.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 126 起始页码: 197
结束页码: 203
语种: 英语
英文关键词: Climatic variability
; Estuary
; Historical reconstruction
; Stable isotopes
Scopus关键词: Biogeochemistry
; Biological materials
; Climatology
; Coastal zones
; Estuaries
; Organic compounds
; Sedimentology
; Surficial sediments
; Anthropogenic contaminants
; Climatic variability
; Historical reconstruction
; Interannual variability
; Organic matter source
; Sediment core analysis
; Sedimentary organic matter
; Stable isotopes
; Sediments
; carbon
; carbon 13
; nitrogen
; organic matter
; sedimentary organic matter
; unclassified drug
; anthropogenic source
; chemical composition
; climate variation
; coastal zone
; estuarine sediment
; organic matter
; sediment chemistry
; sediment core
; stable isotope
; urban area
; analysis
; anthropogenic variability
; Article
; chemical composition
; coastal waters
; controlled study
; El Nino
; environmental aspects and related phenomena
; geographic distribution
; natural variability
; river
; sediment
; sediment core analysis
; sedimentation rate
; surface sediment
; total organic carbon
; trend study
; urbanized coastal zone
; Uruguay
; Montevideo [Uruguay]
; Rio de la Plata
; Uruguay
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: This study is aimed to identify the different sources of sedimentary organic matter (SOM) within Montevideo coastal zone (MCZ). To this end δ13C, δ15N and C/N ratio were analysed in surface sediments and a sediment core. Sediment core analysis showed that until ~ 1950 CE SOM was mainly marine, observing a shift towards lower δ13C in recent sediments, evidencing an estuarine composition. This trend was associated to the climatic variability, which exerted a major influence on the SOM composition, leading to an increased input of terrigenous material and associated anthropogenic contaminants. Surface sediments collected during different El Niño South Oscillation (ENSO) phases did not show inter-annual variability in SOM composition, which was mainly marine in both eastern and western region of MCZ and estuarine in Montevideo Bay. This spatial pattern provides new insights on the dynamics and factors affecting organic matter sources available for primary consumers along the study region. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88577
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
There are no files associated with this item.
作者单位: Laboratorio de Oceanografía y Ecología Marina, Instituto de ecología y Ciencias Ambientales (IECA), Facultad de Ciencias, Universidad de la República (UdelaR), Iguá 4225, Montevideo, Uruguay; Centro Universitario Regional Este, UdelaR, Ruta nacional N°9 intersección Ruta N°15, Rocha, Uruguay; Laboratório de Química Inorgânica Marinha, Instituto Oceanográfico, Universidade de São Paulo, Praça do Oceanográfico 191, São Paulo, SP, Brazil
Recommended Citation:
Bueno C.,Brugnoli E.,Bergamino L.,et al. Anthropogenic and natural variability in the composition of sedimentary organic matter of the urbanised coastal zone of Montevideo (Río de la Plata)[J]. Marine Pollution Bulletin,2018-01-01,126